These are not exactly equal. I'm not saying that I am particularly triggered by such titles (even when they apply to my family history, genealogy, etc) but there are some people who are and accomodating them is not a huge impact.

Changing the names back because you were upset that somone changed them in the first place, with the express knowledge that some people may be affected by this, is a dick move.

One of these moves is a virtue signal, yes, but it has no real impact once completed. This current move from 'main' to 'master' is designed to both virtue signal and to upset/piss people off/etc.

That was stupid, but not evil.